FIELD: physics.SUBSTANCE: sighting system comprises multiple small prisms-cubes directed at the same angle and arranged one behind the other with stepwise offset vertically and horizontally. A block of prisms-cubes is rocked relative to the common geometric axis of the block of prisms. The size of the side of a unit prism-cube Kcorresponds to the relationship:where Dis the diameter of the entrance pupil of the sighting channel; N is the number of small prisms-cubes.EFFECT: reducing the weight of the rocking optical part of the sighting system by reducing the size of optical elements thereof while maintaining a large size of the entrance pupil.3 dwg
